Astex Pharmaceuticals, Inc., a pharmaceutical company, engages in the discovery, acquisition, development, and commercialization of therapies to treat patients with cancer. It offers Dacogen, a pyrimidine analog that decreases the amount of methylation at certain DNA sites. The company also involves in developing various therapeutic anticancer products focused on inhibitors of aurora-A, tyrosine kinase, and DNA methyltransferase. Its generic anti cancer products include Mitomycin and Paclitaxel for solid tumors.

Acquired Companies: Astex Therapeutics, Montigen Pharmaceuticals Inc.